Simple RGB floor lamp, using paper towel tube, print diffuser in a non translucent white like this: https://amzn.to/3t7SVoR , I printed mine in vase mode but can be printed as is for more diffusing properties. Print diffuser connector, floor lamp base, floor lamp top, and paper towel tube connector in any color you wish. I went and stuck 3 strips of RGB LED strips parallel with the paper towel tubes and paper towel tube connector, evenly spaced around it. Gluing things together is highly recommended. All paper towel tube connections are made for towel tubes with a 40mm +/- i.d. Wiring and soldering skills are very much needed.